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We all know what dinosaurs are, and as children we probably all had a favorite. ...
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We all know what dinosaurs are, and as children we probably all had a favorite. The tyrannosaurus rex is the most popular carnivore, the diplodocus is one of the biggest herbivores, the triceratops looked like an enormous bull with three horns, the stegosaurus had a mallet at the end of its tail, and since Jurassic Park we can add to the collection the terrible velociraptor who, aside from attacking in packs, is very intelligent. This ranking lists the main dinosaurs that populated the Earth for 160 million years. Go ahead and vote for your favorite dinosaur.
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The actors and actresses are people who play characters in movies, television, t...
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The actors and actresses are people who play characters in movies, television, theater or even on the radio. Lots of actors have made the public enjoy their works since ancient times, anywhere in the world. This ranking focuses on actors and actresses born in Venezuela, from which you can vote for your favorites.
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Traditionally painters are known as artists who practice the art of creating pai...
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Traditionally painters are known as artists who practice the art of creating paintings, frescoes and generally decorate canvas in an innovative and artistic way. From the nineteenth century, with the new photographic techniques that allowed immediate and more faithful portraits, some painters became photographers or illustrators, whereas another painters began to believe in their personal inspiration and not in the commission of a customer. This ranking is based precisely on the artists, for which Brazil has led great names throughout its history. In your opinion, what is the best painter Brazilian of all time? Go ahead and participate!
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This Classora survey tries to capture the biggest names in Peruvian literature, ...
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This Classora survey tries to capture the biggest names in Peruvian literature, regardless of genre. Notwithstanding this however, we may have missed an important name or two as well as writers that may not be very well known. Therefore we hope our users will enrich this report by providing names and opinions. On the other hand, it's always difficult to determine the best representative of all time of a specific subject. And when talking about literature this may be even more problematic, due to its subjective nature. So please be our guest and participate. Vote the best Peruvian writers of all time.
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The ecological footprint indicator represents the surface area a person requires...
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The ecological footprint indicator represents the surface area a person requires to generate the resources he or she uses and mitigate the waste produced by his or her lifestyle. It requires a complex calculation but it does provide an idea of the impact on the planet of a specific lifestyle or mode of life, as compared to the planet's biocapacity.
This ranking presents several values for different countries:Ecological footprints, expressed in hectares required per person. Biocapacity, expressed in hectares available per person.
The difference of biocapacity and footprint. If it's negative, the country does not have sufficient ecological resources in its territory. This is known as local ecological deficit.
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Computer science is a modern field of study. In fact, only a small fragment of h...
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Computer science is a modern field of study. In fact, only a small fragment of human history can bear witness to the arrival of this new scientific field of study. Nonetheless, computer science came and changed the world for the better: originally used as calculating machines, computers are now a vital part of most occupations. Telecommunications, leisure activities, hours at the office, or most daily activities would not be the same had the computer not been invented. In this ranking Classora provides a list of the most important names relating to the field of computer science and engineering, from Steve Jobs, who conceived the possibility of making computers available to the masses, Bill Gates, founder of Microsoft, Larry Page and Sergey Brin, founders of Google, Larry Ellison, the creator of Oracle...etc. Vote for the most important figures in the history of computer science and software engineering.
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This survey tries to perform an independent study about the quality in the workp...
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This survey tries to perform an independent study about the quality in the workplace for companies in Málaga. You can participate by giving a score from 0 to 10 to each enterprise. Also, if you want to, you can make your preference list confidential (nobody can read it but you), private (just for you and your friends) or public (everyone can see it). As more people vote, more representative will be the results of Classora.
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Journalist's work is of great relevance in today's society where the media has s...
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Journalist's work is of great relevance in today's society where the media has such influence over the population. Whether through print, radio, television, digital media, etc.., Journalists try to report on issues of public interest. Some of them excel at finding new information and thoroughly investigate issues of concern, others have great communication skills, reliability, appearance...There are many journalists in every region, and in this case we will focus on the [DEMONYMS] ones. Who is your favorite one?
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Thanks to advances in medicine and our new lifestyles people are living longer. ...
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Thanks to advances in medicine and our new lifestyles people are living longer. But... are we living longer and better? Or are we just increasing years of life lived in poor health? Healthy life expectancy is the indicator that helps answer this question. It is a compound indicator that combines mortality data with health related data, and it measures the number of years that a person of a given age is expected to live while enjoying good health. This ranking lists the countries of the European Union by the life expectancy of European men.
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The NBA All-Star Game is a friendly game in which only the best players of the y...
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The NBA All-Star Game is a friendly game in which only the best players of the year participate, divided in two teams which represent each conference. This list shows the most valuable players of each of these games played throughout history.
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The modern football (soccer) was created in England in 1863, after the formation...
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The modern football (soccer) was created in England in 1863, after the formation of the Football Association. The agency responsible for managing and monitoring the global football competitions is the FIFA. In this way, the most prestigious international tournament is the World Cup, held every four years (which doubles the audience gained by the Olympics Games). At club level, the Champions League and the Libertadores Cup are the more solemn competitions. Undoubtedly, be successful as a soccer player is a very difficult challenge, but in Croatia have born big stars. This Classora's survey present the most prominent players for Croatia. In your opinion, what is the best Croatian player of all time? Go ahead and participate!
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This survey tries to perform an independent study about the quality in the workp...
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This survey tries to perform an independent study about the quality in the workplace for companies in Valencia. You can participate by giving a score from 0 to 10 to each enterprise. Also, if you want to, you can make your preference list confidential (nobody can read it but you), private (just for you and your friends) or public (everyone can see it). As more people vote, more representative will be the results of Classora.
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There are many man-made architectural works that have amazed the world. From the...
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There are many man-made architectural works that have amazed the world. From the Egyptians to the Mayans, from the Greeks to the Chinese... in all civilizations and periods of time you can find commendable constructions worth mentioning. The UNESCO selects sites and constructions of outstanding cultural or natural importance to the common heritage of humanity and declares them as World Heritage Sites in order to catalog them, preserve them, and make them known. This ranking tries to decide which of these wonders that are still standing are the world's most spectacular man-made wonders.
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Currently in Spain there are 50 provinces that, along with the autonomous cities...
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Currently in Spain there are 50 provinces that, along with the autonomous cities of Ceuta and Melilla and some other minor territorial possessions, make up the entire Spanish territory. All of them are unique and different in many aspects, one aspect being their population density. The population density ranges from 800 people per square kilometer in the province of Madrid, to less then 10 people per square kilometer in the province of Soria. This ranking orders the provinces of Spain by their population density.
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This ranking lists the trophies won by the different national teams that have...
(more)This ranking lists the trophies won by the different national teams that have participated in the Euro Cup. This ranking has been created internally by Classora's robots with information from the UEFA, an external source of information. The Euro Cup is the European championship of national soccer teams. It has been played every four years since it was started in 1960 due to the initiative of Frenchman Henri Delaunay, the then president of the French Soccer Federation. By creating this competition, the UEFA has further reinforced the position of European teams in relation to the FIFA. The national teams of Germany, France and Spain have won the most titles in this tournament.
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This trophy has been awarded since the 1969-70 season to the player who obtains ...
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This trophy has been awarded since the 1969-70 season to the player who obtains the highest average of assists per game in the NBA regular league. From the 1946-47 season to the 1968-69 season, the player that received this award was the one that obtained the most assists at the end of the season. This list includes the winners of each season following both criteria.
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This report lists the most densely ...
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This report lists the most densely populated municipalities of Community of Valencia. The information relative to the number of inhabitants comes from the census carried out by the National Statistics Institute (NSI) or derived sources, while the area of each city hall has been taken from the National Geographic Institute (NGI) or derived sources. The ratio between both metrics has been calculated automatically by Classora's robots, therefore temporal inconsistencies may arise. This report is very significant for the autonomous community of Community of Valencia as it allows for an analysis of the distribution of population throughout the entire region, as well as longitudinal analyses.
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The Grand Slam tournaments are: the Australian Open, the French Open, Wimbledon,...
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The Grand Slam tournaments are: the Australian Open, the French Open, Wimbledon, and the US Open. A player that wins any of these is said to have won a Grand Slam. This expression comes from the game of bridge and has been used to refer to these tennis tournaments since 1933. Besides being the most renowned among players and tennis fans, Grand Slam winners are also awarded prize-money and points for ATP Rankings. There are few players who can boast winning these 4 tournaments. This ranking shows the tennis players that have won the most Grand Slam tournaments.
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Oil is a fossil fuel that is the main energy source in developed countries, so i...
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Oil is a fossil fuel that is the main energy source in developed countries, so it has become one of the world's most valuable assets.
This ranking includes the total amount of imported oil, usually measured in barrels (equivalent to 42 gallons or 158.987294928 liters) per day, including both crude oil and oil products.
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Thanks to advances in medicine and our new lifestyles people are living longer. ...
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Thanks to advances in medicine and our new lifestyles people are living longer. But... are we living longer and better? Or are we just increasing years of life lived in poor health? Healthy life expectancy is the indicator that helps answer this question. It is a compound indicator that combines mortality data with health related data, and it measures the number of years that a person of a given age is expected to live while enjoying good health. This ranking lists the countries of the European Union by the life expectancy of European women.
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Feminism is an ideology that defends the interests of women and advocates the so...
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Feminism is an ideology that defends the interests of women and advocates the social equality of women in relation to men. In the last decades, feminism has made a lot of progress in the West: the right to vote, equal employment opportunities, the right to petition for a divorce, the right to make medical decisions...etc. In this ranking you can see a list of women that have championed this cause throughout history, be it for fighting explicitly for women's rights or simply for standing out in the task that they have performed, which in turn facilitated female social integration. Which are the most representative?
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The sculpture is one of the Fine Arts which let the artist express himself by we...
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The sculpture is one of the Fine Arts which let the artist express himself by welding, molding or carving in different materials. For a long time the sculpture helped illiterate people understand history, events and concepts. The sculptures could be seen as carved stone books. Sometimes the ornamental sculpture plays a role, especially since the twentieth century. This ranking tries to discover the Argentinean artists who have left their mark on the history of sculpture. In your opinion, who is the best Argentinean sculptor of all time? Go ahead and participate!
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Atlético de Madrid, or simply Atleti, was founded in 1919 in the Spanish ...
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Atlético de Madrid, or simply Atleti, was founded in 1919 in the Spanish capital. It is said that it's the third largest soccer club as far as the number of fans goes, and they have tasted success by winning both national and international titles.

They call themselves el pupas , a term which alludes to the suffering endured by the team's fans. (Indeed, many other teams would like to suffer as much as this team and be as successful). Many great players have passed through the club. But who is the best?
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The modern football (soccer) was created in England in 1863, after the formation...
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The modern football (soccer) was created in England in 1863, after the formation of the Football Association. The agency responsible for managing and monitoring the global football competitions is the FIFA. In this way, the most prestigious international tournament is the World Cup, held every four years (which doubles the audience gained by the Olympics Games). At club level, the Champions League and the Libertadores Cup are the more solemn competitions. Undoubtedly, be successful as a soccer player is a very difficult challenge, but in Netherlands have born big stars. This Classora's survey present the most prominent players for Netherlands. In your opinion, what is the best Dutch player of all time? Go ahead and participate!
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There are different types of recognitions given to artists whose albums achieve ...
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There are different types of recognitions given to artists whose albums achieve high numbers in sales. In Spanish speaking countries, the most common recognitions are the Gold Record (Disco de Oro) and the Platinum Record (Platino), while in English speaking countries the most recognized award is the Golden Record. The number of sales required to attain one of these awards varies depending on the population of the country in which the album is sold and the average volume of sales, with the scale within a country fluctuating depending on the changes in record sales. This ranking is a general approximation, since there is no official committee that can authenticate these figures that give us the Latin singers with the most records sold of all time.(less)

Do you prefer Windows or Linux? Which version of Windows do you like most? Which...
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Do you prefer Windows or Linux? Which version of Windows do you like most? Which Linux distribution is your favorite? Throughout history there have been countless operating systems: subscription software, free software, betas, alphas...etc. So if you like computing, and have had the opportunity to try more than one operating system, help us pick the ones you think are the best ever. And of course, try to be objective, so that your opinion on free or subscription software does not radically influence your vote.
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There is a great diversity in canine breeds and oftentimes they respond to the n...
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There is a great diversity in canine breeds and oftentimes they respond to the needs of different people: friendly dogs, hunting dogs, loyal dogs... and obviously some breeds are smarter and others are more brutish. To evaluate the "average intelligence" of a breed several characteristics are considered, such as functional intelligence and the degree of obedience (for example, by counting the number of exercises needed before a new command is learned). Another factor is the capacity a dog has to recall an order without having to perform the drill repeatedly. Some breeds even learn well when trained by relatively inexperienced trainers. This is the original classification drafted by Dr. Stanley Coren.
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The actors and actresses are people who play characters in movies, television, t...
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The actors and actresses are people who play characters in movies, television, theater or even on the radio. Lots of actors have made the public enjoy their works since ancient times, anywhere in the world. This ranking focuses on actors and actresses born in Italy, from which you can vote for your favorites.
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Writers like Isaac Asimov, Jules Verne, or George Orwell are masters and pioneer...
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Writers like Isaac Asimov, Jules Verne, or George Orwell are masters and pioneers of the science fiction genre. In many cases they wrote books with a vision of the future that astonishes people who read them today. The worlds they imagined were at the time fantastical, but to us the worlds they painted represent our day- to-day life. Remember Captain Nemo's submarine? Do you recall the trip to the moon or the journey to the center of the Earth? Participate in this ranking by voting for the best science fiction novels. Which has made the most profound impact on you?
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This report includes all the municipalities of Extremadura organized by the numb...
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This report includes all the municipalities of Extremadura organized by the number of registered homes. The information comes from the census carried out by the National Statistics Institute (NSI). The population census is one of the most expensive operations performed by the State, so it is therefore only done every 10 years (therefore the information displayed may not be completely current). In fact, taking the census involves contracting and subcontracting thousands of people during several months, therefore the NSI becomes one of the companies with the most employees in Spain.
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This Classora survey tries to capture the biggest names in Chilean literature, r...
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This Classora survey tries to capture the biggest names in Chilean literature, regardless of genre. Notwithstanding this however, we may have missed an important name or two as well as writers that may not be very well known. Therefore we hope our users will enrich this report by providing names and opinions. On the other hand, it's always difficult to determine the best representative of all time of a specific subject. And when talking about literature this may be even more problematic, due to its subjective nature. So please be our guest and participate. Vote the best Chilean writers of all time.
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This ranking lists the names of soccer players that have scored the most goals w...
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This ranking lists the names of soccer players that have scored the most goals while wearing Spain's national soccer team jersey. Some memorable soccer players stand out, such as Raul, Fernando Hierro, David Villa, Emilio Butragueño, and Alfredo Di Stefano. Since its creation in the year 1920, the Spanish national soccer team has won two European Cups and once at the Olympics Games. Also, it is one of the few teams to have risen to the top of the FIFA World Ranking.
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This survey tries to perform an independent study about the quality in the workp...
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This survey tries to perform an independent study about the quality in the workplace for companies in Zaragoza. You can participate by giving a score from 0 to 10 to each enterprise. Also, if you want to, you can make your preference list confidential (nobody can read it but you), private (just for you and your friends) or public (everyone can see it). As more people vote, more representative will be the results of Classora.
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GP 125 is the third class of the Road Racing World Championship Grand Prix(more)
GP 125 is the third class of the Road Racing World Championship Grand Prix. The high-tech motorcycles used for this competition cannot be used on public roads. This has been the world's premier road racing championship since its creation in 1949 and it is currently organized by Dorna, a Spanish company, and by the International Motorcycle Federation. This ranking lists the riders who have won the 125 cc category the most times.
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The actors and actresses are people who play characters in movies, television, t...
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The actors and actresses are people who play characters in movies, television, theater or even on the radio. Lots of actors have made the public enjoy their works since ancient times, anywhere in the world. This ranking focuses on actors and actresses born in Chile, from which you can vote for your favorites.
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This Classora survey tries to capture the biggest names in Ecuadorian literature...
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This Classora survey tries to capture the biggest names in Ecuadorian literature, regardless of genre. Notwithstanding this however, we may have missed an important name or two as well as writers that may not be very well known. Therefore we hope our users will enrich this report by providing names and opinions. On the other hand, it's always difficult to determine the best representative of all time of a specific subject. And when talking about literature this may be even more problematic, due to its subjective nature. So please be our guest and participate. Vote the best Ecuadorian writers of all time.
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GP 250 is the second class of the <i>Road Racing World Championship Gran...
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GP 250 is the second class of the <i>Road Racing World Championship Grand Prix</i>. The high-tech motorcycles used for this competition cannot be used on public roads. This has been the world's premier road racing championship since its creation in 1949 and it is currently organized by Dorna, a Spanish company, and by the International Motorcycle Federation. This ranking lists the riders who have won the 250 cc category the most times.
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The idea is to freely choose and vote for contemporary plastic artists, such as ...
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The idea is to freely choose and vote for contemporary plastic artists, such as painters, sculptors or ceramists from Community of Madrid. Artists who are not dead, and who were either born in Madrid or are very tied to the region. (In the picture: painting by Eduardo Arroyo).
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This ranking is dedicated to the soccer fanatics who each weekend go to the socc...
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This ranking is dedicated to the soccer fanatics who each weekend go to the soccer stadium and cheer for their team, defend it`s colors, and support it through the good times and the bad. Despite the fact that Real Madrid and F.C. Barcelona are the teams with biggest budgets, there are other soccer teams in Spain who stand out for their fans and their relentless support. Vote for the teams you think have the most fans, and of course, support your favorite team!(less)

Nowadays, Mathematics are an indispensable tool in fields such as Engineering, E...
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Nowadays, Mathematics are an indispensable tool in fields such as Engineering, Economics, Medicine, Natural Sciences... and even Music!. However, from the historical point of view, the evolution of Mathematics is strongly associated with the abstraction capacity of human beings. In fact, probably the first abstract concepts used by humans were numbers (needed at first to measure the areas and count the cattle, and later to allow trade and tax purposes). Thus, the consolidation of Mathematics in recent years allowed the subsequent development of other disciplines. In this survey Classora presents the main mathematicians in the history of France. We invite you to participate by voting for the most relevant.
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Traditionally painters are known as artists who practice the art of creating pai...
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Traditionally painters are known as artists who practice the art of creating paintings, frescoes and generally decorate canvas in an innovative and artistic way. From the nineteenth century, with the new photographic techniques that allowed immediate and more faithful portraits, some painters became photographers or illustrators, whereas another painters began to believe in their personal inspiration and not in the commission of a customer. This ranking is based precisely on the artists, for which Cuba has led great names throughout its history. In your opinion, what is the best painter Cuban of all time? Go ahead and participate! ("The Wake" by Francisco Oller)
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MotoGP is the premier class of the Road Racing World Championship Grand Prix whi...
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MotoGP is the premier class of the Road Racing World Championship Grand Prix which originated in 2002 to replace the old GP500 class. The high-tech motorcycles used for this competition cannot be used on public roads. This has been the world's premier road racing championship since its creation in 1949 and it is currently organized by Dorna, a Spanish company, and by the International Motorcycle Federation. The championship is comprised of 18 grand prix which take place in 16 different countries of all 5 continents. This ranking lists the riders who have won this premier class competition the most times.
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Who is the most powerful superhero? Superman, Batman, Spiderman, Ironman, Captai...
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Who is the most powerful superhero? Superman, Batman, Spiderman, Ironman, Captain America, Hancock, Daredevil, Elektra... This ranking includes the main superheroes of all time. What would occur if they all met in the same city and didn't get along? Which of them would emerge victorious from battle? The answer is up to you! Vote the most powerful superhero in history. And of course, come back to see if the rest of the world agrees with you.
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Help

What is Classora?

Classora is a knowledge base oriented to data analysis.

The goal of Classora is to integrate information from public sources (World Bank, IMF, CIA... etc), private sources and Internet users, enhancing the result with many added values. Among them we must include the ability of Classora to convert unstructured data into structured information schemas. As well as tools to represent information collected in different formats (charts, tables, graphs, maps... etc).